voip behind nat

Hello friends, I would like to use Voip but I can´t have any incoming call, I can only have outgoing calls. If I try to dial to the voip number the phone never rings but If I start a phone call from the voip I can dial to everywhere and the sound is clear like crystal.

I have one dsl connection to the internet and one public IP. Then I do nat, bandwidth limit and QoS with the mikrotik router and then it goes to the client with private Ip addresses. I think that I could do DMZ but this only could work for un client and I want to use voip for about 40 clients.

Do you have any idea how can I do this, or if you use voip you can only have one voip device per ip public address?

Thanks

SROA

try this chain-dst=nat src-address=your public IP protocol=udp dst-port=5060 << for sip 4569 << for iax2 under in action tab action=dst-nat to addresses= IP of your sip or aix server to ports=5060 or 5469

correct me if im wrong :smiley:

iwantlemonjuice